50 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			50 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| var arrayMap = require('./_arrayMap'),
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|     baseGet = require('./_baseGet'),
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|     baseIteratee = require('./_baseIteratee'),
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|     baseMap = require('./_baseMap'),
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|     baseSortBy = require('./_baseSortBy'),
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|     baseUnary = require('./_baseUnary'),
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|     compareMultiple = require('./_compareMultiple'),
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|     identity = require('./identity'),
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|     isArray = require('./isArray');
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| 
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| /**
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|  * The base implementation of `_.orderBy` without param guards.
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|  *
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|  * @private
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|  * @param {Array|Object} collection The collection to iterate over.
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|  * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.
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|  * @param {string[]} orders The sort orders of `iteratees`.
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|  * @returns {Array} Returns the new sorted array.
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|  */
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| function baseOrderBy(collection, iteratees, orders) {
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|   if (iteratees.length) {
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|     iteratees = arrayMap(iteratees, function(iteratee) {
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|       if (isArray(iteratee)) {
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|         return function(value) {
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|           return baseGet(value, iteratee.length === 1 ? iteratee[0] : iteratee);
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|         }
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|       }
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|       return iteratee;
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|     });
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|   } else {
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|     iteratees = [identity];
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|   }
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| 
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|   var index = -1;
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|   iteratees = arrayMap(iteratees, baseUnary(baseIteratee));
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| 
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|   var result = baseMap(collection, function(value, key, collection) {
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|     var criteria = arrayMap(iteratees, function(iteratee) {
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|       return iteratee(value);
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|     });
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|     return { 'criteria': criteria, 'index': ++index, 'value': value };
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|   });
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| 
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|   return baseSortBy(result, function(object, other) {
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|     return compareMultiple(object, other, orders);
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|   });
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| }
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| 
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| module.exports = baseOrderBy;
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